USA flag logo/image

An Official Website of the United States Government

Novel Real-Time Algorithms:Quantifying Wake-Sleep States

Award Information

Agency:
Department of Health and Human Services
Branch:
N/A
Award ID:
71035
Program Year/Program:
2004 / SBIR
Agency Tracking Number:
HL078442
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
CLEVELAND MEDICAL DEVICES, INC.
4415 EUCLID AVE CLEVELAND, OH 44103-
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 2004
Title: Novel Real-Time Algorithms:Quantifying Wake-Sleep States
Agency: HHS
Contract: 1R43HL078442-01
Award Amount: $176,785.00
 

Abstract:

The overall goal of this project is to develop and clinically validate a novel class of computerized EEG-based algorithms and sophisticated signal processing methods designed for high temporal resolution characterization of the wake-sleep transition and fluctuations within sleep stages. In addition to their capability of profiling wakefulness and various sleep stages as a continuous process, these algorithms will be developed in a format such that they can be eventually implemented for real-time detection of wake-to sleep transitions. The new approach of this proposal is based on an innovative interaction of classically independent signal processing methods for quantifying EEG, including traditional Short-Term Fourier Transform, Recursive Auto-regressive Parameter Estimation, and Wavelet analysis. This new approach takes advantage of each method's relative strength and "fuses" the information obtained from each technique to provide a means of quantifying the entire wake-sleep transition with high temporal resolution (e.g., early detection of sleep onset) while being robust to factors that normally degrade EEG processing. The developed algorithms will be validated with an extensive set of clinical data including nocturnal polysomnography, and day-time tests of Sleepiness, MSLT (Multiple Sleep Latency Test) and MWT (Maintenance of Wakefulness Test). The dynamic events detected by these algorithms (e.g., micro-arousals and micro-sleeps) will be evaluated against standard R&K scoring of the same EEG data. Furthermore, the profile and characteristics of the events detected in PSG will be correlated with the daytime objective and subjective tests of sleepiness.

Principal Investigator:

Mohammad N. Modarreszadeh

Business Contact:

Robert Schmidt
2167916720
RSCHMIDT@CLEVEMED.COM
Small Business Information at Submission:

CLEVELAND MEDICAL DEVICES, INC.
4415 EUCLID AVE CLEVELAND, OH 44103

EIN/Tax ID: 130024478
DUNS: N/A
Number of Employees: N/A
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No